Gyms in London that AI assistants recommend

Third Space is named most, in 81% of 36 answers.

Gyms in London named by AI assistants, November 2026

  1. 1Third Space81%

    95%: 65 to 90%

    ChatGPT
    75%
    Claude
    92%
    Gemini
    75%
    Questions
    4 of 4
    Avg. position
    2.1

    Named in answers to

    • What is the best gym in London?, from ChatGPT, Claude and Gemini
    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT, Claude and Gemini
    • Which gym in London is good for beginners?, from Claude
    • Where can I find a gym in London with good group classes?, from ChatGPT, Claude and Gemini
    Is this your business?
  2. 2PureGym81%

    95%: 65 to 90%

    ChatGPT
    75%
    Claude
    92%
    Gemini
    75%
    Questions
    4 of 4
    Avg. position
    2.7

    Named in answers to

    • What is the best gym in London?, from ChatGPT, Claude and Gemini
    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT, Claude and Gemini
    • Which gym in London is good for beginners?, from ChatGPT, Claude and Gemini
    • Where can I find a gym in London with good group classes?, from Claude

    Also written PureGym London

    Is this your business?
  3. 3The Gym Group58%

    95%: 42 to 73%

    ChatGPT
    67%
    Claude
    83%
    Gemini
    25%
    Questions
    4 of 4
    Avg. position
    3

    Named in answers to

    • What is the best gym in London?, from ChatGPT and Claude
    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT and Claude
    • Which gym in London is good for beginners?, from ChatGPT, Claude and Gemini
    • Where can I find a gym in London with good group classes?, from Claude

    Also written The Gym Group London

    Is this your business?
  4. 4Virgin Active56%

    95%: 40 to 71%

    ChatGPT
    50%
    Claude
    92%
    Gemini
    25%
    Questions
    4 of 4
    Avg. position
    3.7

    Named in answers to

    • What is the best gym in London?, from Claude
    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT, Claude and Gemini
    • Which gym in London is good for beginners?, from Claude
    • Where can I find a gym in London with good group classes?, from ChatGPT and Claude
    Is this your business?
  5. 5Gymbox42%

    95%: 27 to 58%

    ChatGPT
    50%
    Claude
    8%
    Gemini
    67%
    Questions
    3 of 4
    Avg. position
    2.9

    Named in answers to

    • What is the best gym in London?, from ChatGPT, Claude and Gemini
    • I want to join a gym in London. Which ones would you recommend?, from Gemini
    • Where can I find a gym in London with good group classes?, from ChatGPT and Gemini
    Is this your business?
  6. 6Nuffield Health39%

    95%: 25 to 55%

    ChatGPT
    58%
    Claude
    33%
    Gemini
    25%
    Questions
    3 of 4
    Avg. position
    4

    Named in answers to

    • What is the best gym in London?, from ChatGPT
    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT and Claude
    • Which gym in London is good for beginners?, from ChatGPT, Claude and Gemini

    Also written Nuffield Health Fitness & Wellbeing, Nuffield Health Fitness & Wellbeing London

    Is this your business?
  7. 7Equinox31%

    95%: 18 to 47%

    ChatGPT
    0%
    Claude
    67%
    Gemini
    25%
    Questions
    3 of 4
    Avg. position
    3.9

    Named in answers to

    • What is the best gym in London?, from Claude and Gemini
    • I want to join a gym in London. Which ones would you recommend?, from Claude
    • Where can I find a gym in London with good group classes?, from Claude
    Is this your business?
  8. 8Fitness First31%

    95%: 18 to 47%

    ChatGPT
    42%
    Claude
    50%
    Gemini
    0%
    Questions
    4 of 4
    Avg. position
    5.1

    Named in answers to

    • What is the best gym in London?, from Claude
    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT and Claude
    • Which gym in London is good for beginners?, from Claude
    • Where can I find a gym in London with good group classes?, from ChatGPT
    Is this your business?
  9. 9Barry's19%

    95%: 10 to 35%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    25%
    Questions
    2 of 4
    Avg. position
    2.9

    Named in answers to

    • What is the best gym in London?, from Claude
    • Where can I find a gym in London with good group classes?, from Claude and Gemini

    Also written Barry's Bootcamp, Barry's UK

    Is this your business?
  10. 10Better19%

    95%: 10 to 35%

    ChatGPT
    50%
    Claude
    8%
    Gemini
    0%
    Questions
    3 of 4
    Avg. position
    4.6

    Named in answers to

    • I want to join a gym in London. Which ones would you recommend?, from ChatGPT and Claude
    • Which gym in London is good for beginners?, from ChatGPT
    • Where can I find a gym in London with good group classes?, from ChatGPT

    Also written Better Gym, Better Gyms, Better Leisure Centres, Better Leisure Centres London

    Is this your business?
  11. 111Rebel17%

    95%: 8 to 32%

    ChatGPT
    17%
    Claude
    33%
    Gemini
    0%
    Questions
    2 of 4
    Avg. position
    4.2

    Named in answers to

    • What is the best gym in London?, from Claude
    • Where can I find a gym in London with good group classes?, from ChatGPT and Claude
    Is this your business?
  12. 12F45 Training17%

    95%: 8 to 32%

    ChatGPT
    0%
    Claude
    33%
    Gemini
    17%
    Questions
    2 of 4
    Avg. position
    5

    Named in answers to

    • I want to join a gym in London. Which ones would you recommend?, from Claude
    • Where can I find a gym in London with good group classes?, from Claude and Gemini
    Is this your business?
  13. 13Psycle14%

    95%: 6 to 29%

    ChatGPT
    8%
    Claude
    8%
    Gemini
    25%
    Questions
    1 of 4
    Avg. position
    4.4

    Named in answers to

    • Where can I find a gym in London with good group classes?, from ChatGPT, Claude and Gemini

    Also written Psycle London

    Is this your business?

Open a row to see each assistant's share of its own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 3 more names came up in a single answer and are counted above but not listed.

Gyms in London: is this your field?

16different names in 36 answers, 3 of them only once. The assistants change their minds from one answer to the next.

Check whether AI names you
Is this your business?

Named on this list? Get the badge for your website and a free scan of who AI assistants recommend to your customers. Use the badge only for a business named here. It records this edition, without verifying ownership or promising future mentions.

How the AIGROW Score is measured

No business can pay to appear in the Index, rise in it or be removed from it. How the Index stays neutral

AI Visibility Index · November 2026

Asked about gyms in London, ChatGPT, Claude and Gemini named Third Space most often, in 81% of answers (its AI Recommendation Rate), then PureGym (81%) and The Gym Group (58%). Across 36 answers they named 16 different businesses, 3 of them only once. Each of four buyer questions was asked three times, in English, in November 2026.

The AI Recommendation Rate is the fraction of the 36 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.

Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.

Gyms · London

81% of answers named Third Space

Answers
36
Businesses named
16
Named only once
3
Named by 2+ assistants
13 of 13
Named again on a rerun
86%

Edition November 2026. Download the data

Share this rankingLinkedInX

What each assistant said

The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.

#ChatGPTClaudeGemini
1Third Space75%Third Space92%Third Space75%
2PureGym75%PureGym92%PureGym75%
3The Gym Group67%Virgin Active92%Gymbox67%
4Nuffield Health58%The Gym Group83%The Gym Group25%
5Virgin Active50%Equinox67%Virgin Active25%

Claude named no business in 1 of its 12 answers.

Questions about gyms in London

ChatGPT, Claude and Gemini named Third Space most often, in 81% of 36 answers, then PureGym (81%) and The Gym Group (58%). The names come from what the assistants answered to four buyer questions in November 2026; we have not checked that any of them is good, open or real.

On the first name, yes: each of them named Third Space most often. All 13 listed businesses were named by two or more of them.

Each question was asked three times. Of the names an assistant gave for a question, 86% came back in two or more of those runs; the rest came up once. The 95% range beside each rate in the ranking shows how far it could move by chance.

Run the free checker: it asks ChatGPT, Claude, Gemini and Grok two of the Index questions for gyms, with the category and the place already filled in, and shows every answer word for word. About 30 seconds, no sign-up. The page on how AI assistants recommend gyms shows what an owner can work on. Nothing can guarantee that an assistant names you.

Named here? Put it on your site

Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.

Named by AI assistants: Gyms in London, AIGROW AI Visibility Index, November 2026
<a href="https://aigrow.gg/index/gyms/london"><img src="https://aigrow.gg/badges/index/2026-11/gyms/london.svg" width="312" height="100" alt="Named by AI assistants: Gyms in London, AIGROW AI Visibility Index, November 2026"></a>

The questions

Asked word for word, three times each, to every assistant. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.

  1. 1What is the best gym in London?
  2. 2I want to join a gym in London. Which ones would you recommend?
  3. 3Which gym in London is good for beginners?
  4. 4Where can I find a gym in London with good group classes?

How to read this page

What it measures
Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
Why the ranges matter
36 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
One business, several spellings
Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
A name is wrong
If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.

Where the assistants look

The sites read most often, with web search on, before the assistants answer about this category in the United Kingdom. From the AI Source Map: 8 answers.

reddit.com
Read in 88% of the answers
puregym.com
Read in 75% of the answers
wikipedia.org
Read in 75% of the answers

AI Visibility Index

Not on this list? See what ChatGPT says about your business

Gyms, London: see whether the assistants name you, or someone else.

Free, no account, no card. About a minute.

Edition November 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0